/* ==========================================================================
   FIELDS EXTERIORS — Siding Studio
   Stage + dock layout, glass HUD, swatches, photo tools. Scoped under .ss
   ========================================================================== */
.ss {
  --bg: #f6f3ea; --bg-elev: #ffffff; --line: rgba(10, 20, 33, 0.1); --muted: var(--text-soft);
  --accent: var(--safety); --accent-ink: #ffffff; --accent-2: var(--caution);
  --glass: rgba(7, 29, 51, 0.66); --glass-line: rgba(255, 255, 255, 0.14); --ease: var(--ease-build);
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 372px); gap: 1.2rem; align-items: stretch; margin-top: 1.4rem;
}
.ss > *, .ss__panel > * { min-width: 0; }
.ss [hidden] { display: none !important; }

/* ---------- Stage ---------- */
.ss__stage { position: relative; width: 100%; min-width: 0; aspect-ratio: 16 / 10.5; min-height: 520px; border-radius: 20px; overflow: hidden; isolation: isolate; border: 1px solid rgba(10, 20, 33, 0.12);
  background: linear-gradient(180deg, #5b8fcb 0%, #dbe7f2 62%, #7f9a6a 62.5%, #5f7b3a 100%); box-shadow: var(--shadow-strong); }
.ss__stage::after { content: ""; position: absolute; inset: 0; z-index: 4; pointer-events: none; box-shadow: inset 0 0 90px rgba(7, 29, 51, 0.28); }
.ss__stage.is-full { aspect-ratio: auto; height: 100vh; border-radius: 0; }
.ss__stage.is-over { outline: 3px dashed var(--accent); outline-offset: -6px; }
.ss__viewport, .ss__photo { position: absolute; inset: 0; z-index: 1; }
.ss__viewport canvas { display: block; width: 100%; height: 100%; }
#ssCanvas { touch-action: none; cursor: grab; }
#ssCanvas:active { cursor: grabbing; }

/* Glass HUD */
.ss__hud { position: absolute; z-index: 6; display: flex; align-items: center; gap: .5rem; pointer-events: none; }
.ss__hud > * { pointer-events: auto; }
.ss__hud--tl { top: 14px; left: 14px; }
.ss__hud--tr { top: 14px; right: 14px; }
.ss__hud--bl { bottom: 14px; left: 14px; max-width: calc(100% - 28px); }
.ss__hud--br { bottom: 14px; right: 14px; }
.ss__modes, .ss__group, .ss__icon, .ss__readout, .ss__loading, .ss__status, .ss__badge { background: var(--glass); backdrop-filter: blur(14px) saturate(1.3); -webkit-backdrop-filter: blur(14px) saturate(1.3); border: 1px solid var(--glass-line); box-shadow: 0 8px 24px rgba(7, 29, 51, 0.3); }
.ss__modes, .ss__group { display: inline-flex; gap: 2px; padding: 4px; border-radius: 999px; }
.ss__mode, .ss__group button { border: 0; background: transparent; color: #dfe8f1; font-family: var(--font-head); font-weight: 600; text-transform: uppercase; letter-spacing: .07em; font-size: .78rem; padding: .45rem .85rem; border-radius: 999px; cursor: pointer; transition: background .25s, color .25s; white-space: nowrap; }
.ss__mode:hover, .ss__group button:hover { color: #fff; background: rgba(255, 255, 255, .1); }
.ss__mode.is-active, .ss__group button.is-active { background: var(--accent); color: var(--accent-ink); }
.ss__group--light button.is-active { background: #fff; color: var(--navy-deep); }
.ss__icon { width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; color: #dfe8f1; cursor: pointer; padding: 0; transition: color .25s, background .25s, transform .2s var(--ease); }
.ss__icon svg { width: 18px; height: 18px; }
.ss__icon:hover { color: #fff; transform: translateY(-1px); }
.ss__icon.is-active { color: var(--accent-2); }
.ss__icon.is-flash { background: #fff; color: var(--navy-deep); }
.ss__readout { display: flex; align-items: center; gap: .7rem; padding: .45rem .95rem .45rem .5rem; border-radius: 999px; color: #f3f7fb; }
.ss__readout-main { display: flex; align-items: center; gap: .6rem; white-space: nowrap; }
.ss__readout strong { font-family: var(--font-head); font-size: 1.05rem; letter-spacing: .02em; text-transform: uppercase; }
.ss__code { font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: #fff; background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .15); padding: .12rem .5rem; border-radius: 999px; font-family: monospace; }
.ss__meta { color: #c7d5e2; font-size: .85rem; white-space: nowrap; }
.ss__dot { flex: 0 0 auto; width: 30px; height: 30px; border-radius: 50%; box-shadow: inset 0 -7px 12px rgba(0, 0, 0, .35), 0 0 0 1px rgba(255, 255, 255, .15), 0 4px 10px rgba(0, 0, 0, .3); }
.ss__loading { position: absolute; z-index: 7; left: 50%; top: 50%; transform: translate(-50%, -50%); padding: .7rem 1.1rem; border-radius: 999px; color: #f3f7fb; font-weight: 600; display: flex; align-items: center; gap: .6rem; font-size: .9rem; max-width: 80%; text-align: center; }
.ss__spinner { width: 16px; height: 16px; border-radius: 50%; border: 2px solid rgba(255, 255, 255, .25); border-top-color: var(--accent-2); animation: ss-spin .9s linear infinite; flex: 0 0 auto; }
@keyframes ss-spin { to { transform: rotate(360deg); } }
.ss__status { position: absolute; z-index: 6; top: 66px; left: 14px; right: 14px; padding: .6rem .9rem; border-radius: 12px; color: #eaf1f8; font-size: .82rem; line-height: 1.45; }
.ss__status a { color: var(--accent-2); text-decoration: underline; }
.ss__badge { position: absolute; z-index: 6; top: 66px; left: 14px; border-radius: 999px; padding: .4rem .8rem; color: #fff; font-size: .78rem; font-weight: 600; cursor: pointer; display: inline-flex; align-items: center; gap: .5rem; }
.ss__badge i { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-2); }
.ss__badge:hover { background: rgba(212, 62, 16, .8); }

/* Paint "ball" — var(--c) must resolve on the ball itself */
.ss__dot, .ss__swatch-ball, .ss__mini, .ss__chip i, .ss__pin i {
  background: radial-gradient(circle at 32% 26%, rgba(255, 255, 255, .7) 0, rgba(255, 255, 255, .15) 22%, transparent 45%), radial-gradient(circle at 50% 118%, rgba(255, 255, 255, .2), transparent 45%), var(--c, var(--paint)); }

/* ---------- Dock ---------- */
.ss__dock { position: relative; z-index: 8; min-width: 0; display: flex; flex-direction: column; height: 0; min-height: 100%; border: 1px solid var(--line); border-radius: 20px; background: var(--bg-elev); box-shadow: var(--shadow-soft); overflow: hidden; }
.ss__tabs { display: flex; gap: .2rem; padding: .5rem; border-bottom: 1px solid var(--line); background: var(--bg); }
.ss__tab { flex: 1; border: 0; background: transparent; color: var(--muted); font-family: var(--font-head); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; font-size: .8rem; padding: .55rem .3rem; border-radius: 10px; cursor: pointer; transition: all .25s; }
.ss__tab:hover { color: var(--navy); background: rgba(13, 59, 102, .06); }
.ss__tab.is-active { background: var(--navy); color: #fff; }
.ss__panels { flex: 1; min-height: 0; overflow: auto; padding: 1rem; scrollbar-width: thin; scrollbar-color: rgba(10, 20, 33, .2) transparent; }
.ss__panel { display: none; }
.ss__panel.is-active { display: grid; gap: .95rem; align-content: start; }
.ss__note { margin: 0; color: var(--muted); font-size: .85rem; line-height: 1.5; }
.ss__note--tiny { font-size: .74rem; line-height: 1.45; }
.ss__note code { color: var(--text); background: rgba(10, 20, 33, .06); padding: 0 .3rem; border-radius: 4px; font-size: .8em; }
.ss__label { font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 700; margin: 0; }
.ss__estimate { padding: .8rem .9rem; border-radius: 12px; background: rgba(13, 59, 102, .06); border: 1px solid rgba(13, 59, 102, .12); font-size: .86rem; line-height: 1.45; color: var(--text); }
.ss__estimate strong { color: var(--navy); }
.ss__estimate small { display: block; margin-top: .3rem; color: var(--muted); font-size: .72rem; }

/* Quick-start presets */
.ss__presets { display: grid; grid-template-columns: repeat(2, 1fr); gap: .4rem; }
.ss__preset { display: flex; align-items: center; gap: .5rem; padding: .5rem .6rem; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); color: var(--text); cursor: pointer; font-size: .78rem; font-weight: 600; text-align: left; transition: all .2s var(--ease); }
.ss__preset:hover { border-color: rgba(255, 90, 31, .55); transform: translateY(-1px); }
.ss__preset i { width: 20px; height: 20px; border-radius: 50%; flex: 0 0 auto; box-shadow: inset 0 -3px 6px rgba(0, 0, 0, .3), 0 0 0 1px rgba(10, 20, 33, .12); }
.ss__preset span { line-height: 1.2; }

/* Houses */
.ss__houses { display: grid; grid-template-columns: repeat(2, 1fr); gap: .5rem; }
.ss__house { display: grid; gap: .15rem; justify-items: center; padding: .7rem .5rem .6rem; border: 1px solid var(--line); border-radius: 14px; background: var(--bg); color: var(--muted); cursor: pointer; font-family: var(--font-head); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; font-size: .78rem; transition: all .25s var(--ease); }
.ss__house svg { width: 100%; max-width: 84px; height: auto; color: currentColor; fill: currentColor; opacity: .85; }
.ss__house em { font-style: normal; font-size: .6rem; letter-spacing: .1em; color: var(--muted); font-family: var(--font-body); font-weight: 600; }
.ss__house:hover { border-color: rgba(255, 90, 31, .55); color: var(--navy); transform: translateY(-1px); }
.ss__house.is-active { border-color: var(--accent); background: rgba(255, 90, 31, .09); color: var(--navy); }
.ss__house.is-active em { color: var(--safety-dark); }
.ss__upload { display: grid; gap: .5rem; padding: .8rem .9rem; border: 1px dashed rgba(13, 59, 102, .35); border-radius: 12px; background: var(--bg); }
.ss__upload strong { font-size: .88rem; color: var(--navy); }

/* Siding material + profiles */
.ss__materials { display: grid; grid-template-columns: repeat(3, 1fr); gap: .4rem; }
.ss__materials button { display: grid; gap: .15rem; text-align: left; padding: .6rem .6rem; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); cursor: pointer; color: var(--muted); font: inherit; transition: all .25s var(--ease); }
.ss__materials strong { font-family: var(--font-head); text-transform: uppercase; letter-spacing: .05em; font-size: .78rem; color: var(--text); }
.ss__materials small { font-size: .64rem; line-height: 1.3; }
.ss__materials button:hover { border-color: rgba(255, 90, 31, .55); }
.ss__materials button.is-active { border-color: var(--accent); background: rgba(255, 90, 31, .09); }
.ss__materials button.is-active strong { color: var(--navy); }
.ss__profiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: .4rem; }
.ss__profile { display: grid; justify-items: center; gap: .3rem; padding: .45rem .2rem .4rem; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); color: var(--muted); cursor: pointer; font-size: .6rem; text-transform: uppercase; letter-spacing: .06em; font-weight: 700; text-align: center; transition: all .25s var(--ease); }
.ss__profile svg { width: 100%; max-width: 46px; height: auto; border-radius: 6px; color: var(--steel); fill: currentColor; overflow: hidden; background: var(--paper); }
.ss__profile:hover { border-color: rgba(255, 90, 31, .55); color: var(--navy); }
.ss__profile.is-active { border-color: var(--accent); background: rgba(255, 90, 31, .09); color: var(--navy); }
.ss__profile.is-active svg { color: var(--navy); }

/* Colors */
.ss__filters { display: grid; grid-template-columns: 1fr 1fr; gap: .45rem; }
.ss__filters select, .ss__filters input { font: inherit; font-size: .88rem; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: .5rem .7rem; min-width: 0; }
.ss__swatches { display: grid; grid-template-columns: repeat(4, 1fr); gap: .3rem .25rem; }
.ss__swatch { display: grid; justify-items: center; gap: .3rem; padding: .45rem .1rem .35rem; border: 1px solid transparent; border-radius: 12px; background: transparent; cursor: pointer; color: var(--muted); transition: background .2s, border-color .2s; }
.ss__swatch:hover { background: rgba(10, 20, 33, .04); }
.ss__swatch[aria-pressed="true"] { background: rgba(10, 20, 33, .04); border-color: var(--line); }
.ss__swatch-ball { width: 44px; height: 44px; border-radius: 50%; box-shadow: inset 0 -8px 14px rgba(0, 0, 0, .28), 0 5px 12px rgba(10, 20, 33, .22), 0 0 0 1px rgba(10, 20, 33, .08); transition: transform .3s var(--ease); }
.ss__swatch:hover .ss__swatch-ball { transform: scale(1.08) translateY(-2px); }
.ss__swatch[aria-pressed="true"] .ss__swatch-ball { box-shadow: inset 0 -8px 14px rgba(0, 0, 0, .28), 0 5px 12px rgba(10, 20, 33, .22), 0 0 0 3px #fff, 0 0 0 5px var(--accent); }
.ss__swatch-name { font-size: .64rem; line-height: 1.15; text-align: center; color: var(--text); font-weight: 600; max-width: 100%; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ss__match { display: flex; flex-wrap: wrap; gap: .4rem; padding: .7rem; border-radius: 12px; background: var(--bg); border: 1px solid var(--line); }
.ss__match-label { flex-basis: 100%; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); font-weight: 700; }
.ss__chip { display: inline-flex; align-items: center; gap: .45rem; font: inherit; font-size: .8rem; color: var(--text); background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: .3rem .7rem .3rem .35rem; cursor: pointer; transition: border-color .2s, transform .2s var(--ease); }
.ss__chip:hover { border-color: var(--accent); transform: translateY(-1px); }
.ss__chip i, .ss__pin i { width: 16px; height: 16px; border-radius: 50%; box-shadow: inset 0 -3px 6px rgba(0, 0, 0, .3), 0 0 0 1px rgba(10, 20, 33, .1); flex: 0 0 auto; }
.ss__custom { border: 1px solid var(--line); border-radius: 12px; padding: 0 .9rem; background: var(--bg); }
.ss__custom summary { cursor: pointer; padding: .7rem 0; font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 700; list-style: none; display: flex; justify-content: space-between; }
.ss__custom summary::after { content: "+"; font-size: 1rem; line-height: 1; }
.ss__custom[open] summary::after { content: "–"; }
.ss__custom-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .6rem; margin-bottom: .8rem; }
.ss__custom .hsl { padding-bottom: .9rem; }
.hex-field, .picker-field { display: flex; align-items: center; gap: .5rem; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .3rem .6rem; font-size: .68rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); font-weight: 700; }
.hex-field input { flex: 1 1 0; width: 0; min-width: 0; background: none; border: 0; color: var(--text); font: 600 1rem/1 monospace; text-transform: none; letter-spacing: .05em; outline: 0; }
.picker-field { cursor: pointer; }
.picker-field input { width: 26px; height: 26px; border: 0; padding: 0; background: none; cursor: pointer; }
.hsl { display: grid; gap: .6rem; }
.hsl label, .photo-sliders label { display: grid; gap: .3rem; font-size: .68rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); font-weight: 700; }
.ss__lrv { font-size: .74rem; color: var(--muted); }
.ss__lrv strong { color: var(--safety-dark); }

/* Accents */
.ss__extra { display: grid; gap: .55rem; padding: .75rem .85rem; border: 1px solid var(--line); border-radius: 14px; background: var(--bg); }
.ss__extra-body { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.ss__extra-body--stack { display: grid; gap: .55rem; }
.ss__minis { display: flex; gap: .35rem; flex-wrap: wrap; }
.ss__mini { width: 26px; height: 26px; border-radius: 50%; border: 2px solid transparent; padding: 0; cursor: pointer; box-shadow: inset 0 -4px 8px rgba(0, 0, 0, .3), 0 0 0 1px rgba(10, 20, 33, .18); transition: transform .2s var(--ease); }
.ss__mini:hover { transform: scale(1.15); }
.ss__mini.is-active { border-color: var(--navy); transform: scale(1.15); box-shadow: inset 0 -4px 8px rgba(0, 0, 0, .3), 0 0 0 2px #fff; }
.ss__extra input[type=color] { width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 50%; background: none; padding: 0; cursor: pointer; flex: 0 0 auto; }
.ss__inline { display: flex; align-items: center; gap: .6rem; }
.ss__group--wide { border-radius: 12px; display: grid; grid-template-columns: repeat(2, 1fr); background: #fff; border: 1px solid var(--line); box-shadow: none; backdrop-filter: none; padding: 3px; gap: 2px; }
.ss__roof-kinds { grid-template-columns: repeat(3, 1fr); }
.ss__group--wide button { display: flex; align-items: center; justify-content: center; gap: .45rem; border-radius: 9px; color: var(--muted); font-size: .68rem; padding: .45rem .4rem; }
.ss__group--wide button.is-active { background: rgba(13, 59, 102, .1); color: var(--navy); }
.ss__group--wide.ss__group--3 { grid-template-columns: repeat(3, 1fr); }
.ss__group--wide.ss__group--4 { grid-template-columns: repeat(4, 1fr); }
.ss__two { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; }
.ss__two > div { display: grid; gap: .4rem; align-content: start; min-width: 0; }
.switch { display: inline-flex; align-items: center; gap: .5rem; cursor: pointer; font-weight: 600; font-size: .9rem; color: var(--text); }
.switch input { position: absolute; opacity: 0; pointer-events: none; }
.switch__track { width: 40px; height: 22px; border-radius: 999px; background: rgba(10, 20, 33, .18); position: relative; transition: background .25s; flex: 0 0 auto; }
.switch__track::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: transform .25s var(--ease); box-shadow: 0 1px 3px rgba(0, 0, 0, .3); }
.switch input:checked + .switch__track { background: var(--accent); }
.switch input:checked + .switch__track::after { transform: translateX(18px); }
.switch--sm { font-size: .84rem; }
.ss__extra select { font: inherit; font-size: .86rem; color: var(--text); background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: .5rem .7rem; width: 100%; }

/* Saved designs */
.ss__save-row { display: flex; gap: .5rem; flex-wrap: wrap; }
.ss__save-row input[type=text] { flex: 1 1 160px; font: inherit; font-size: .86rem; color: var(--text); background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: .55rem .8rem; min-width: 0; }
.ss__save-row .ss__btn { flex: 0 0 auto; }
.ss__saved-list { display: grid; gap: .5rem; }
.ss__saved { display: flex; align-items: center; gap: .6rem; padding: .55rem .7rem; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); }
.ss__saved i { width: 22px; height: 22px; border-radius: 50%; flex: 0 0 auto; box-shadow: inset 0 -3px 6px rgba(0, 0, 0, .3), 0 0 0 1px rgba(10, 20, 33, .12); }
.ss__saved-info { flex: 1 1 auto; min-width: 0; display: grid; }
.ss__saved-info strong { font-size: .84rem; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ss__saved-info small { color: var(--muted); font-size: .7rem; }
.ss__saved-del { border: 0; background: transparent; color: var(--muted); cursor: pointer; font-size: .95rem; padding: .3rem; line-height: 1; border-radius: 50%; flex: 0 0 auto; }
.ss__saved-del:hover { color: var(--safety-dark); background: rgba(255, 90, 31, .1); }

/* Tray + actions */
.ss__tray { padding: .7rem 1rem; border-top: 1px solid var(--line); display: grid; gap: .5rem; background: var(--bg); }
.ss__tray-items { display: flex; gap: .5rem; overflow-x: auto; padding-bottom: .2rem; scrollbar-width: thin; }
.ss__pin { flex: 0 0 104px; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: #fff; padding: 0; cursor: pointer; display: grid; transition: border-color .2s, transform .2s var(--ease); }
.ss__pin:hover { border-color: var(--accent); transform: translateY(-2px); }
.ss__pin img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; }
.ss__pin span { display: flex; align-items: center; gap: .3rem; padding: .3rem .4rem; font-size: .62rem; color: var(--text); white-space: nowrap; overflow: hidden; }
.ss__pin i { width: 10px; height: 10px; }
.ss__pin small { color: var(--muted); margin-left: auto; }
.ss__actions { padding: .8rem 1rem .9rem; border-top: 1px solid var(--line); display: grid; gap: .45rem; }
.ss__actions-row { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; }
.ss__btn { display: inline-flex; align-items: center; justify-content: center; gap: .4rem; padding: .7rem 1rem; border-radius: 999px; border: 1px solid transparent; font: inherit; font-weight: 700; font-size: .9rem; cursor: pointer; transition: transform .2s var(--ease), box-shadow .2s; }
.ss__btn--primary { background: var(--safety); color: #fff; box-shadow: 0 12px 26px rgba(255, 90, 31, .28); }
.ss__btn--primary:hover { transform: translateY(-2px); }
.ss__btn--ghost { background: #fff; color: var(--navy); border-color: rgba(13, 59, 102, .25); font-size: .82rem; padding: .55rem .8rem; }
.ss__btn--ghost:hover { border-color: var(--navy); }
.ss__btn:disabled { opacity: .6; cursor: default; transform: none; }
.ss__footnote { margin: .9rem 0 0; color: var(--muted); font-size: .8rem; line-height: 1.5; max-width: 780px; }

/* ---------- Photo mode ---------- */
.photo-drop { position: absolute; inset: 0; display: grid; place-items: center; cursor: crosshair; background: radial-gradient(80% 70% at 50% 40%, rgba(7, 29, 51, .35), rgba(7, 29, 51, .75)); }
.photo-drop:not(.has-photo) { cursor: pointer; }
.photo-drop canvas, .photo-drop svg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.photo-drop:not(.has-photo) canvas { display: none; }
.photo-drop.has-photo .photo-drop__empty { display: none; }
.photo-drop__empty { text-align: center; color: #dfe8f1; display: grid; gap: .3rem; padding: 2rem; border: 2px dashed rgba(255, 197, 49, .6); border-radius: var(--radius-md); margin: 1.5rem; max-width: 440px; transition: all .25s; backdrop-filter: blur(6px); }
.ss__stage.is-over .photo-drop__empty { border-color: var(--accent-2); background: rgba(255, 197, 49, .12); }
.photo-drop__empty strong { color: #fff; font-size: 1.15rem; font-family: var(--font-head); text-transform: uppercase; letter-spacing: .04em; }
.photo-drop__icon { font-size: 2.4rem; }
.photo-drop__tip { font-size: .8rem; opacity: .85; }
.ss__photo[data-seed-mode="exclude"] .photo-drop { cursor: not-allowed; }
.corner-layer { z-index: 3; pointer-events: none; overflow: visible; }
.corner-layer polygon { fill: rgba(255, 197, 49, .16); stroke: var(--caution); stroke-width: 3; vector-effect: non-scaling-stroke; }
.corner-layer g { pointer-events: all; cursor: grab; }
.corner-layer g:active { cursor: grabbing; }
.corner-layer circle { fill: var(--safety); stroke: #fff; stroke-width: 3; vector-effect: non-scaling-stroke; }
.corner-layer text { fill: #fff; font-family: var(--font-head); font-weight: 700; text-anchor: middle; pointer-events: none; }
.compare-line { position: absolute; top: 0; bottom: 0; width: 2px; background: #fff; box-shadow: 0 0 8px rgba(0, 0, 0, .6); pointer-events: none; z-index: 2; }
.compare-line::after { content: "◀ ▶"; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); background: #fff; color: #111; font-size: .65rem; padding: .25rem .4rem; border-radius: 999px; white-space: nowrap; }
.photo-hint { margin: 0; color: var(--text); font-size: .88rem; background: rgba(255, 90, 31, .08); border-left: 3px solid var(--accent); padding: .6rem .9rem; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.photo-controls { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; }
.file-btn { cursor: pointer; }
.seg { display: inline-flex; background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
.seg__btn { border: 0; background: transparent; color: var(--muted); font-weight: 600; padding: .4rem .8rem; border-radius: 999px; cursor: pointer; font-size: .82rem; transition: all .2s; }
.seg__btn.is-active { background: var(--navy); color: #fff; }
.photo-status { color: var(--muted); font-size: .84rem; }
.photo-sliders { display: grid; gap: .7rem; }
.photo-sliders output { float: right; color: var(--text); }
.ss__lift { display: grid; gap: .6rem; padding: .8rem .9rem; border: 1px solid rgba(13, 59, 102, .25); border-radius: 14px; background: linear-gradient(180deg, rgba(13, 59, 102, .06), rgba(13, 59, 102, .02)); }
.ss__lift h4 { margin: 0; font-size: 1rem; color: var(--navy); }
.ss__lift select { font: inherit; font-size: .86rem; color: var(--text); background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: .45rem .6rem; }
.ss__lift-row { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }

/* Family Design Quest */
.ss__quest { display: grid; gap: .75rem; padding: .9rem; border-radius: 16px; background: linear-gradient(145deg, #fff7d8, #eef7ff); border: 1px solid rgba(255, 157, 38, .35); }
.ss__quest h3 { margin: 0; color: var(--navy); font-size: 1.18rem; }
.ss__quest > p { margin: 0; color: var(--text-soft); font-size: .88rem; line-height: 1.45; }
.ss__quest-card { display: grid; grid-template-columns: auto 1fr; column-gap: .65rem; align-items: center; padding: .85rem; background: rgba(255,255,255,.82); border-radius: 13px; box-shadow: 0 8px 20px rgba(13,59,102,.08); }
.ss__quest-card strong { color: var(--navy); font-size: .92rem; }
.ss__quest-card span:last-child { grid-column: 2; color: var(--text-soft); font-size: .8rem; line-height: 1.35; }
.ss__quest-icon { grid-row: span 2; font-size: 1.65rem; }
.ss__quest-actions { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; }

/* Range inputs */
.ss input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 8px; border-radius: 4px; background: rgba(10, 20, 33, .14); outline: 0; cursor: pointer; }
.ss input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: #fff; border: 3px solid var(--accent); box-shadow: 0 2px 8px rgba(0, 0, 0, .25); }
.ss input[type=range]::-moz-range-thumb { width: 20px; height: 20px; border-radius: 50%; background: #fff; border: 3px solid var(--accent); }
.ss input[type=range]:disabled { opacity: .35; cursor: not-allowed; }
.ss .range--hue { background: linear-gradient(90deg, #f00, #ff0, #0f0, #0ff, #00f, #f0f, #f00); }
.ss .range--sat { background: linear-gradient(90deg, #808080, hsl(var(--hue, 0), 100%, 50%)); }
.ss .range--lig { background: linear-gradient(90deg, #000, #808080, #fff); }

/* ---------- Page bits ---------- */
.studio-panel { overflow: visible; }
.studio-panel .panel-intro { max-width: 820px; }
.studio-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
.studio-steps article { padding: 1.3rem 1.3rem 1.2rem; border-radius: var(--radius-md); background: var(--paper); border: 1px solid rgba(10, 20, 33, .08); box-shadow: var(--shadow-soft); }
.studio-steps h3 { margin: .2rem 0 .4rem; color: var(--navy); font-size: 1.15rem; }
.studio-steps p { margin: 0; color: var(--text-soft); font-size: .95rem; }
.studio-steps .step-num { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--safety); color: #fff; font-family: var(--font-head); font-weight: 700; }

/* Materials comparison table */
.compare-table-wrap { overflow-x: auto; border-radius: var(--radius-md); border: 1px solid rgba(10, 20, 33, .1); }
.compare-table { width: 100%; border-collapse: collapse; min-width: 640px; background: var(--paper); }
.compare-table th, .compare-table td { padding: .75rem 1rem; text-align: left; font-size: .9rem; border-bottom: 1px solid rgba(10, 20, 33, .08); }
.compare-table th { font-family: var(--font-head); text-transform: uppercase; letter-spacing: .06em; font-size: .74rem; color: var(--navy); background: rgba(13, 59, 102, .05); }
.compare-table td:first-child { font-weight: 700; color: var(--navy); white-space: nowrap; }
.compare-table tbody tr:last-child td { border-bottom: 0; }
.compare-table tbody tr:hover { background: rgba(255, 90, 31, .04); }

/* ---------- Responsive ---------- */
@media (max-width: 1180px) {
  .ss { grid-template-columns: 1fr; }
  .ss__stage { aspect-ratio: 4 / 3; min-height: 420px; }
  .ss__dock { height: auto; min-height: 0; }
  .ss__panels { overflow: visible; }
  .studio-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 880px) {
  .ss__stage { min-height: 360px; }
  .ss__hud--tr .ss__group { display: none; }
  .studio-steps { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .ss__stage { aspect-ratio: 1 / 1; min-height: 320px; border-radius: 16px; scroll-margin-top: 5.5rem; }
  .ss__extra { scroll-margin-block: 1rem; overflow-anchor: none; }
  .ss__readout .ss__meta { display: none; }
  .ss__hud--br { bottom: 62px; right: auto; left: 14px; }
  .ss__profiles { grid-template-columns: repeat(4, 1fr); }
  .ss__materials { grid-template-columns: 1fr; }
  .ss__presets { grid-template-columns: 1fr; }
  .ss__two { grid-template-columns: 1fr; }
  .ss__swatches { grid-template-columns: repeat(3, 1fr); }
  .ss__tabs { overflow-x: auto; overscroll-behavior-x: contain; -webkit-overflow-scrolling: touch; scrollbar-width: thin; }
  .ss__tab { flex: 0 0 auto; min-width: 5.2rem; min-height: 44px; }
  .ss__tab[data-tab="play"] { min-width: 6.7rem; }
  .ss__actions-row, .ss__quest-actions { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .ss__mode { padding: .4rem .55rem; font-size: .66rem; }
  .ss__hud { gap: .3rem; }
  .ss__icon { width: 32px; height: 32px; } .ss__icon svg { width: 15px; height: 15px; }
  .ss__group button { padding: .4rem .6rem; font-size: .7rem; }
  .ss__tab { font-size: .68rem; padding: .5rem .2rem; }
  .ss__roof-kinds { grid-template-columns: repeat(2, 1fr); }
  .ss__stage { min-height: 300px; }
  .ss__filters { grid-template-columns: 1fr; }
  .ss__photo .photo-drop__empty { margin: .8rem; padding: 1.1rem; }
  .photo-drop__empty strong { font-size: 1rem; }
}
@media (prefers-reduced-motion: reduce) { .ss * { transition: none !important; } }